CN104685690B - Method for securing electrode assembly using tape - Google Patents

Method for securing electrode assembly using tape Download PDF

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Publication number
CN104685690B
CN104685690B CN201480001308.6A CN201480001308A CN104685690B CN 104685690 B CN104685690 B CN 104685690B CN 201480001308 A CN201480001308 A CN 201480001308A CN 104685690 B CN104685690 B CN 104685690B
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Prior art keywords
electrode
barrier film
adhesive tape
fixing
fixing means
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CN201480001308.6A
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CN104685690A (en
Inventor
高明勋
李垣锡
梁永住
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LG Energy Solution Ltd
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LG Chemical Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • H01M10/0413Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463Separators, membranes or diaphragms characterised by their shape
    • H01M50/466U-shaped, bag-shaped or folded
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • H01M10/0404Machines for assembling batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • H01M10/0436Small-sized flat cells or batteries for portable equipment
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • H01M10/0463Cells or batteries with horizontal or inclined electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • H01M10/0585Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/24Alkaline accumulators
    • H01M10/30Nickel accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/446Composite material consisting of a mixture of organic and inorganic materials
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/449Separators, membranes or diaphragms characterised by the material having a layered structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/449Separators, membranes or diaphragms characterised by the material having a layered structure
    • H01M50/457Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46Separators, membranes or diaphragms characterised by their combination with electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46Separators, membranes or diaphragms characterised by their combination with electrodes
    • H01M50/461Separators, membranes or diaphragms characterised by their combination with electrodes with adhesive layers between electrodes and separators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463Separators, membranes or diaphragms characterised by their shape
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00Safety devices for primary or secondary batteries
    • H01M2200/20Pressure-sensitive devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

The present invention relates to a method for securing an electrode assembly using tape such that respective layers constituting the electrode assembly do not move with respect to each other. The method for securing an electrode assembly according to a preferred embodiment of the present invention comprises: a step (S10) of manufacturing an electrode assembly having a structure in which a plurality of electrodes and a plurality of separation membranes, which have a wider area than the electrodes, are alternately stacked; a step (S20) of disposing, on the edge side of the separation membranes, securing tape having a central section inclined with respect to the direction that the electrodes and the separation membranes are stacked; and a step (S30) of attaching the securing tape to the electrode assembly while pressing the edge portion of the separation membranes by means of the central section of the securing tape.

Description

Utilize the fixing means of the electrode assemblie of adhesive tape
Technical field
The present invention relates to the use of adhesive tape and fix the side that electrode assemblie is mutually shifted to avoid each layer being constituted electrode assemblie Method.
Background technology
Secondary cell is as solving to use the atmospheric pollution of the existing gasoline automobile of Fossil fuel, diesel car etc. Deng and propose the electric automobile (EV) of scheme, mixed power electric car (HEV), Parallel HEV (PHEV) Deng power source and get most of the attention, and in such as big-and-middle-sized equipment such as automobiles due to height output, jumbo demand and use by The big-and-middle-sized battery module of multiple battery units electrical connection.
However, it is preferred to big-and-middle-sized battery module is manufactured into both smaller and lighter as far as possible, therefore, it is possible to higher integrated level punching Amass and rectangular cell lighter for relative capacity, pouch-shaped battery etc. use as the battery unit of big-and-middle-sized battery module.
Electrode assemblie is contained, generally, according to the electrode group of positive pole/barrier film/negative pole structure in the housing of battery unit Part constitutes to classify in which way.
Typically, roll (convoluted) electrode assemblie, stacked (cascade type) electrode assemblie and stacking/folding can be divided into Stack-type electrode assemblie, described roll (convoluted) electrode assemblie be formed as by the positive pole of longer sheet type and negative pole across every The structure wound under the state of film, described stacked (cascade type) electrode assemblie be will intercept with the unit of predefined size after Multiple positive poles and negative pole stack gradually when across barrier film.
The KR published patent of the applicant the 2001-0082058th, No. 2001-0082059 and 2001- Stack/folding-typed electrode assembly disclosed in 0082060 has the full electricity of the structure stacking gradually positive pole/barrier film/negative pole Pond (full cell) is as unit cells, and when multiple full batteries are configured on longer barrier film thin slice with can The mode making full battery overlapped repeatedly winds barrier film thin slice by unit length and manufactures.At this stack/folding-typed electrode In the case of assembly, the shell of all full batteries is surrounded by barrier film thin slice, thus constitutes between each layer of the structure of electrode assemblie Relative position fixed.
On the other hand, stacked electrode assemblie has the knot making multiple electrode and multiple barrier film be laminated in an alternating manner Structure.
In the case of this stacked electrode assemblie, generally, barrier film is manufactured into the width of transverse direction and longitudinal direction more than electricity Pole, and repeatedly perform on the box with the width corresponding with the width laterally or longitudinally of barrier film or fixture stacking barrier film and The step of multilayer electrode above it, and manufacture stacked electrode assemblie.Different from stack/folding-typed electrode assembly, electrode and every Relative position between film is not fixed, thus in order to fix the relative position between each layer, it is common to use use tape to cover The mode of the side of lid electrode assemblie.
The end of multiple barrier films that Fig. 1 is possessed by the stacked electrode assemblie illustrating prior art is in an irregular pattern , when the side utilizing adhesive tape to cover stacked electrode assemblie, again and again there are feelings as shown in Figure 1 in the side view of the state folded Condition.
If illustrating in more detail, make electrode 1,2 and barrier film 3 with alternately if utilizing adhesive tape (not shown) pressing to have , then there is the barrier film 3A that folds downward and fold upward in the side of the electrode assemblie of the structure that mode is laminated Barrier film 3C, 3D, as utilized the circular portion that A represents, it is also possible to occurs barrier film 3B to involve in the feelings between electrode 2 and electrode 1 Condition.
In this case, the electrode 1,2 in opposite directions when across barrier film 3B of the part that utilizes A to represent it is positioned at The probability connected and be short-circuited is higher.
So, exist due to structure during the side covering the electrode assemblie utilizing overlapped way manufacture with adhesive tape Become the short circuit between each electrode of electrode assemblie that the problem that the underproof probability of product is higher occurs.
Summary of the invention
Invention to solve the technical problem that
The present invention is to solve that above-mentioned problem proposes, its object is to provide the fixing means of electrode assemblie, it is possible to By during the side covering the electrode assemblie utilizing overlapped way to manufacture with adhesive tape between contingent electrode The probability being short-circuited minimizes.
Another object of the present invention is to provide the fixing means of electrode assemblie, it is possible to together perform to constitute electrode assemblie Anti-short circuit between the fixing and electrode of the relative position of each layer processes.
Solve the means of technical problem
For realizing purpose as above, the fixing means of the electrode assemblie of the preferred embodiment of the present invention can include as Lower step: step S10, manufacture has makes multiple electrode and area more than multiple barrier films stacking in an alternating manner of described electrode The electrode assemblie of the structure become;Step S20, is configured at the edge side of described barrier film, described adhesive tape for fixing by adhesive tape for fixing There are the central authorities relative to the direction of described electrode and the stacking of barrier film institute tilts interval;And step S30, use described adhesive tape for fixing The interval edge pressing described barrier film of central authorities and described adhesive tape for fixing is attached to described electrode assemblie.
Invention effect
Can be by the side covering the electrode assemblie utilizing overlapped way to manufacture with adhesive tape in accordance with the invention it is possible to provide The fixing means of the electrode assemblie that the probability being short-circuited between contingent electrode minimizes during face.
Further, it is possible to provide between the fixing of the relative position of each layer that can together perform composition electrode assemblie and electrode The fixing means of electrode assemblie that processes of anti-short circuit.
Accompanying drawing explanation
The following drawings appended by this specification illustrates the preferred embodiments of the present invention, together plays with above-mentioned summary of the invention Make to be more fully understood that the effect of the technological thought of the present invention, thus the present invention should not be construed as and is confined to this accompanying drawing and remembered The item carried.
The end of multiple barrier films that Fig. 1 is possessed by the stacked electrode assemblie illustrating prior art is in an irregular pattern The side view of the state folded.
Fig. 2 represents step S20 of the fixing means of the electrode assemblie of the present invention.
Fig. 3 represents that the central interval of adhesive tape for fixing starts to press the state of the edge of barrier film.
Fig. 4 represents that the central interval of adhesive tape for fixing is attached to the state of the edge of barrier film.
Fig. 5 represents upper surface and the state of lower surface that the both ends of adhesive tape for fixing are attached to electrode assemblie.
Fig. 6 represents the first exemplary motion track of adhesive tape for fixing.
Fig. 7 represents the second exemplary motion track of adhesive tape for fixing.
Fig. 8 represents the 3rd exemplary motion track of adhesive tape for fixing.
The side view of the first structure of the basic monomer that the electrode assemblie that Fig. 9 manufactures in step slo by expression is possessed.
The side-looking of the second structure of the basic monomer that the electrode assemblie that Figure 10 manufactures in step slo by expression is possessed Figure.
The operation of the operation of the basic monomer that the electrode assemblie that Figure 11 manufactures in step slo by expression manufacture is possessed Figure.
Figure 12 is the side view of the first structure illustrating the electrode assemblie including basic monomer and the first auxiliary monomer.
Figure 13 is the side view of the second structure illustrating the electrode assemblie including basic monomer and the first auxiliary monomer.
Figure 14 is the side view of the 3rd structure illustrating the electrode assemblie including basic monomer and the second auxiliary monomer.
Figure 15 is the side view of the 4th structure illustrating the electrode assemblie including basic monomer and the second auxiliary monomer.
Figure 16 is the 5th structure illustrating the electrode assemblie including basic monomer, the first auxiliary monomer and the second auxiliary monomer Side view.
Figure 17 is the side view of the 6th structure illustrating the electrode assemblie including basic monomer and the first auxiliary monomer.
Figure 18 is the side view of the 7th structure illustrating the electrode assemblie including basic monomer and the second auxiliary monomer.
Detailed description of the invention
Hereinafter, referring to the drawings the preferred embodiments of the present invention are described in detail.But the present invention does not limit to or limits Due to below example.
The term used in this specification and claimed scope or word are construed to generally or word with should not limit Meaning in allusion quotation, but should can be in order to illustrate that with optimal method the invention of oneself suitably defines based on inventor The principle of the concept of term, is construed to meet meaning and the concept of the technological thought of the present invention.
In the accompanying drawings, each structural element or constitute this structural element specific part size for convenience of description and bright Really property and by exaggeration, omit or illustrate in the way of outline.Therefore, the size of each structural element not exclusively reflect actual size. Relevant known function or structure illustrated the feelings that may unnecessarily make idea of the invention fuzzy being judged as Under condition, omit this explanation.
The fixing means of the electrode assemblie of the present invention may include steps of: step S 10, and manufacture has makes multiple electricity The electricity of the structure that pole 111,113 and area are laminated in an alternating manner more than multiple barrier films 112,114 of this electrode 111,113 Pole assembly 100;Step S20, is configured at the edge side of barrier film 112,114 by adhesive tape for fixing T, and described adhesive tape for fixing has phase The central authorities tilted for the direction of electrode 111,113 and 112,114 stackings of barrier film are interval;And step S30, use adhesive tape for fixing The central authorities interval of T presses the edge of barrier film 112,114 and adhesive tape for fixing T is attached to electrode assemblie 100.
Here, the electrode assemblie 100 manufactured by step S10 can become common stacked electrode assemblie, it is possible to To become the electrode assemblie including at least one basic monomer.For the structure of electrode assemblie of the latter and manufacture this electrode assemblie Mode, will be described in detail afterwards.
Fig. 2 represents step S20 of the fixing means of the electrode assemblie of the present invention.
With reference to Fig. 2, electrode assemblie 100 has makes first electrode the 111, first barrier film the 112, second electrode the 113, second barrier film 114 structures stacked gradually, when the first electrode 111 is positive pole, the second electrode 113 is negative pole, when the first electrode 111 is During negative pole, the second electrode 113 is positive pole.
Adhesive tape for fixing T can be formed by polymerizable material, and this adhesive tape for fixing T can come by adhesive tape attachment mechanism MA Mobile.
Here, adhesive tape attachment mechanism MA refers to adhesive tape for fixing T is attached to electrode assemblie 100 and makes fixing glue The mechanism moved with T, adhesive tape attachment mechanism MA have first control section G1 and second control section G2, described first control section G1 and Second control section G2 holds the both ends of adhesive tape for fixing T in the way of enabling the central interval of adhesive tape for fixing T to tilt.Example As, as in figure 2 it is shown, first control section G1 can highlight than second control section G2, if the both ends of adhesive tape for fixing T are by the first The end of the end and second control section G2 of holding portion G1 holds, then the central authorities of adhesive tape for fixing T are interval becomes inclination naturally State.
Fig. 3 represents that the central interval of adhesive tape for fixing starts to press the state of the edge of barrier film, and Fig. 4 represents fixing use The central interval of adhesive tape is attached to the state of the edge of barrier film.
If close to the edge of barrier film 112,114 and contact (that is, from the state of Fig. 2 between the central area of adhesive tape for fixing T Become the state of Fig. 3), then the edge of barrier film 112,114 is by the interval pressing of the central authorities of adhesive tape for fixing T.
The state of Fig. 3 is the original state of step S30, the central interval of adhesive tape for fixing T press in an inclined manner every The edge of film 112,114 and make barrier film 112,114 bend downwards.
If the interval edge part pressing barrier film 112,114 compared with shown in Fig. 3 further of the central authorities of adhesive tape for fixing T Position, the most as shown in Figure 4, the central interval of adhesive tape for fixing T is attached to the edge of barrier film 112,114.
On the other hand, when being in the state of Fig. 4, the upper end of adhesive tape for fixing T starts attachment because of first control section G1 In the upper surface of electrode assemblie 100, due to the length being shorter in length than first control section G1 of second control section G2, be therefore at into Before entering the state of the lower surface that the lower end of adhesive tape for fixing T is attached to electrode assemblie 100.
Fig. 5 represents upper surface and the state of lower surface that the both ends of adhesive tape for fixing T are attached to electrode assemblie 100.
In the state shown in Fig. 4, adhesive tape attachment mechanism MA moves in parallel to the right, and becomes the state of Fig. 5, the first The portion G1 of holding is the state before the upper surface that the upper end of adhesive tape for fixing T is attached to electrode assemblie 100, and second control section G2 is The lower end of adhesive tape for fixing T is attached to the lower surface of electrode assemblie 100 state about about half.
In the state shown in Fig. 5, adhesive tape attachment mechanism MA moves in parallel the most to the right, then adhesive tape for fixing T Top and bottom can be sequentially attached to the upper table of electrode assemblie 100 by first control section G1 and second control section G2 respectively Face and lower surface.
Above-mentioned Fig. 2 is equivalent to step S20 of the fixing means of the electrode assemblie of the present invention, and Fig. 3 to Fig. 5 is equivalent to this Step S30 of the fixing means of bright electrode assemblie.
Further, step S30 can be divided into two steps, in the two step, is first carried out in adhesive tape for fixing T Interval, centre is attached to step S31 of the side of electrode assemblie 100, then performs the both ends of adhesive tape for fixing T are attached to electricity Step S32 of the upper and lower surface of pole assembly 100.
For the detailed step of step S30, will illustrate with reference to Fig. 6 to Fig. 8.
Fig. 6 represents the first exemplary motion track of adhesive tape for fixing, in this case, step S30 all in detail Thin step performs by making adhesive tape for fixing T move in parallel towards electrode assemblie 100.
That is, step S31 is by making adhesive tape for fixing T move along the contact surface direction of electrode 111,113 and barrier film 112,114 Moving and realize, step S32 is also by continuing to make adhesive tape for fixing T along electrode 111,113 and barrier film 112, the contact surface side of 114 Realize to movement.Result is, by making adhesive tape for fixing T move in parallel along the direction of arrow shown in Fig. 6, makes fixing glue Central interval with T is attached to the side of electrode assemblie 100, makes adhesive tape for fixing T move in parallel if continuing on the direction of arrow, Then the both ends of adhesive tape for fixing T also adhere completely to the upper and lower surface of electrode assemblie 100.
Fig. 7 represents the second exemplary motion track of adhesive tape for fixing T, and in this case, step S31 is solid by making Determine to move successively along the direction of arrow of the leftmost side direction of arrow in three shown in Fig. 7 the direction of arrow and central authorities with adhesive tape T Realize.Result is, step S31 is realized by following steps: make adhesive tape for fixing T along electrode 111,113 and barrier film 112, the step that the contact surface direction of 114 is moved;And enable adhesive tape for fixing T with the central interval of adhesive tape for fixing T to phase Same direction (lower section on the basis of Fig. 7) folds the mode of the edge of multiple barrier film 112,114 towards electrode assemblie 100 The step that moves of side-lower.Further, step S32 is by making the rightest along in three shown in Fig. 7 arrow of adhesive tape for fixing T The side direction of arrow moves in parallel and performs.
Fig. 8 represents the 3rd exemplary motion track of adhesive tape for fixing T, in this case, step S31 by along Left arrow direction in arrow shown in Fig. 8 is moved and is realized.In other words, and step S31 is performed by following steps: make solid Surely with adhesive tape T can fold to identical direction (lower section on the basis of Fig. 8) by the central interval of adhesive tape for fixing T multiple every The mode of the edge of film 112,114 moves towards the side-lower of electrode assemblie 100.Further, step S32 and above-mentioned second Motion track is identical.
In the first motion track, the second motion track and the 3rd motion track, although there are differences in step S31, But step S32 is the most identical: by being made by first control section G1 and second control section G2 by adhesive tape attachment mechanism MA The both ends of the adhesive tape for fixing T held are moved along the contact surface direction of electrode 111,113 and barrier film 112,114 and are performed.
By Fig. 2 to Fig. 8, illustrate to utilize adhesive tape for fixing T to fold the left side edge position of barrier film 112,114 and to consolidate Fixed situation, but the right side edge position of barrier film 112,114 also is able to be folded also by the method as above-mentioned method Fixing, this is natural, and in other words, the position, both sides of the edge of barrier film 112,114 can be held by step S20 and step S30 OK.
Up to the present, carry out on the basis of adhesive tape attachment mechanism MA more prominent than second control section G2 for first control section G1 Explanation, but it also is able to the adhesive tape attachment mechanism MA using second control section G2 more prominent than first control section G1, in this situation Under, in step S31, the interval edge folding barrier film 112,114 upward of central authorities of adhesive tape for fixing T.
The fixing means of the electrode assemblie according to the above-mentioned present invention, if through step S20 and step S30, then barrier film 112, the edge of 114 all folds to equidirectional.Therefore, have the effect that barrier film 3 will not be occurred to roll in an irregular pattern Short circuit phenomenon between issuable electrode 1,2 in the stacked electrode assemblie (with reference to Fig. 1) of folded prior art, and will not Occur product defective.
Further, having the effect that can be by being attached to the upper surface of electrode assemblie 100, side by adhesive tape for fixing T And lower surface fixes the relative position of each layer, and the anti-short circuit together performed between electrode 111,113 processes.
Up to the present, for the electrode assemblie 100 manufactured by step S10, illustrate to have and make multiple electricity simply The structure that pole 111,113 and area are laminated in an alternating manner more than the barrier film 112,114 of this electrode 111,113, but below To include at least one basic monomer 110 electrode assemblie 100 various structures and manufacture basic monomer 110 exemplary process Illustrate.
Basic monomer 110 can be made into include with the first electrode 111/ first barrier film 112/ second electrode 113/ second every The structure of the structure of each layer of order stacking of film 114.
The electrode assemblie 100 manufactured in step slo includes that at least one basic monomer 110a, 110b are (with reference to Fig. 9 and figure 10)。
Basic monomer 110 is formed as being sequentially laminated with first electrode the 111, first barrier film the 112, second electrode 113 and second Barrier film 114.So, basic monomer 110 substantially has four-layer structure.More specifically, basic monomer 110 can be as shown in Figure 9 Ground is formed as the first electrode, first barrier film the 112, second electrode 113 and the second barrier film 114 and stacks gradually from top to bottom, or such as First electrode the 111, first barrier film the 112, second electrode 113 and the second barrier film 114 stack gradually from bottom to top as shown in Figure 10.This Time, the first electrode 111 and the second electrode 113 are reciprocal electrode.Such as, if the first electrode 111 is positive pole, then the second electricity Pole 113 is negative pole.It is of course also possible in contrast.
The first electrode 111 that basic monomer 110 is possessed includes collector body and active material layer (active substance), active matter Matter layer is coated on the two sides of collector body.Similarly, the second electrode 113 that basic monomer 110 is possessed also includes collector body and work Property material layer (active substance), active material layer is coated on the two sides of collector body.
On the other hand, the operation manufacturing basic monomer 110 can realize (with reference to Figure 11) with following series-operation.First First, the first electrode material the 121, first diaphragm material the 122, second electrode material 123 and the second diaphragm material 124 is prepared.Here, As described below, electrode material 121,123 is cut into predefined size and forms electrode 111,113.This is at diaphragm material 122,124 In the most identical.In order to the automatization of operation, electrode material 121,123 and diaphragm material 122,124 can be in the shapes being wound in roller State.So, after getting out material, by sickle C1First electrode material 121 is cut into predefined size.Further, logical Cross sickle C2Second electrode material 123 is also cut into predefined size.Then, on the first diaphragm material 122, supply is predetermined First electrode material 121 of size.Further, on the second diaphragm material 124, also supply the second electrode material of predefined size 123.Then, to laminating machine L1、L2Together supply all material.
As it has been described above, electrode assemblie 100 is basic monomer 110 stacking repeatedly and is formed.But, if constituting basic monomer The electrode of 110 and membrane separation, then be difficult to stacking basic monomer 110 repeatedly.It is therefore preferred that what basic monomer 110 was possessed Electrode and barrier film are mutually bonded, laminating machine L1、L2Use for such bonding electrode and barrier film.That is, laminating machine L1、L2Xiang Cai Material applies pressure or applies heat and pressure and bonding electrode material and diaphragm material.So, electrode material and diaphragm material by Laminating machine L1、L2, it is mutually bonded by lamination, by this bonding, basic monomer 110 can more stably maintain The shape of oneself.
After the lamination of each layer, by sickle C3First diaphragm material 122 and the second diaphragm material 124 are cut into Predefined size.By this cutting, it is possible to form basic monomer 110.Additionally, as required, it is also possible to perform basic monomer The various detections of 110.For example, it is also possible to perform such as Thickness sensitivity, vision-based detection, the such detection of short-circuit detecting.
The operation manufacturing basic monomer 110 can be performed by series-operation as above, but is not necessarily to office It is limited to series-operation.I.e., it is also possible to first first electrode the 111, first barrier film the 112, second electrode 113 and the second barrier film 114 are cut After being slit into suitable size, they being carried out stacking and forms basic monomer 110, this is natural.
On the other hand, barrier film 112,114 or diaphragm material 122,124 can utilize the application substance with bonding force to be coated with Apply surface.Now, application substance can be the mixture of inorganic particles and binder polymer.Here, inorganic particles energy Enough improve the heat stability of barrier film.That is, inorganic particles is prevented from barrier film and at high temperature shrinks.Further, binder polymer Can fixed inorganic thing particle, thus, be fixed on can be formed between the inorganic particles between binder polymer predetermined Air hole structure.Due to this air hole structure, even if inorganic particles is coated on barrier film, it is also possible to make ion suitable from positive to negative pole Freely mobile.Further, binder polymer makes inorganic particles stably be maintained at barrier film, thus also is able to improve the machine of barrier film Tool stability.And, binder polymer can be stably more bonding with electrode by barrier film.As reference, barrier film can be by The barrier film base material of polyolefin series is formed.
But, as shown in Figure 9 and Figure 10, the first barrier film 112 is provided with electrode 111,113, on the contrary, the second barrier film on two sides 114 are only provided with electrode 113 in one side.Therefore, the first barrier film 112 can apply application substance on two sides, and the second barrier film 114 is permissible Only at one side coating application substance.That is, the first barrier film 112 can with the first electrode 111 and the second electrode 113 two sides in opposite directions Coating application substance, the second barrier film 114 only can apply application substance with the second electrode 113 one side in opposite directions.
So, by application substance be bonded in basic monomer 110 in perform the most abundant.Therefore, as it has been described above, second Even if barrier film 114 is only even one side is coated.But, it also is able to by hot pressing (heat between basic monomer 110 Etc. press) method and be mutually bonded, thus as required, the second barrier film 114 can also be coated on two sides.That is, second every Film 114 can also with the second electrode 113 one side in opposite directions and its reverse side coating application substance.In this case, it is positioned at The basic monomer 110 of side can pass through the application substance of the second barrier film 114 outer surface with being positioned at the basic monomer 110 immediately below it And be mutually bonded.
As reference, in the case of the application substance with bonding force is coated on barrier film, utilize predetermined object straight Connect and to barrier film applying pressure be and undesirable.Generally, barrier film extends than electrode the longlyest.Accordingly, it is possible to attempt by The end of the first barrier film 112 and the end of the second barrier film 114 are bonded to each other.For example, it may be possible to attempt to ultrasonic bonding by The end of one barrier film 112 and the end of the second barrier film 114 are welded to one another, and in the case of ultrasonic bonding, need to utilize soldering tip (horn) directly pressurize to object.But, utilize the soldering tip end direct weighting to barrier film if so, be then likely to be due to have viscous The application substance of relay and make soldering tip bonding with barrier film.It is thereby possible to cause the fault of device.Therefore, will have bonding force Application substance be coated on barrier film in the case of, being suitable for and directly executing stressed operation by predetermined object to barrier film is not Preferably.
Additionally, basic monomer 110 not necessarily has four-layer structure.Such as, basic monomer 110 can also have and makes first Electrode the 111, first barrier film the 112, second electrode the 113, second barrier film the 114, first electrode the 111, first barrier film the 112, second electrode 113 and second barrier film 114 stack gradually and eight Rotating fields that formed.That is, basic monomer 110 can also have and makes four-layer structure anti- The structure that cladding is folded and is formed.As it has been described above, electrode assemblie 100 makes basic monomer 110 stacking repeatedly be formed.Therefore, Can stacking four-layer structure repeatedly and form electrode assemblie 100, but, such as, it is also possible to repeatedly stacking eight Rotating fields and formed Electrode assemblie 100.
On the other hand, during electrode assemblie 100 can also include the first auxiliary monomer 130 and the second auxiliary monomer 140 extremely Few one.First, the first auxiliary monomer 130 is observed.Basic monomer 110 be make first electrode the 111, first barrier film 112, Second electrode 113 and the second barrier film 114 from top to bottom or stack gradually from bottom to top and are formed.Therefore, if make this substantially Monomer 110 stacking repeatedly and form electrode assemblie 100, then the first electrode 111,116 (hereinafter referred to as " the first end electrodes ") (the first end electrodes can be positive pole, also to be positioned at the top side (with reference to Fig. 9) of electrode assemblie 100 or lower side (with reference to Figure 10) Can be negative pole).First auxiliary monomer 130 adds and is laminated in this first end electrodes 116.
More specifically, as shown in figure 12, if the first electrode 111 is positive pole and the second electrode 113 is negative pole, then from the first end Termination electrode 116 successively, i.e. from the first end electrodes 116 (upside on the basis of Figure 12) laterally stack gradually barrier film 114, Negative pole 113, barrier film 112 and positive pole 111 and form the first auxiliary monomer 130a.Further, as shown in figure 13, if the first electrode 111 It is positive pole for negative pole and the second electrode 113, then from the first end electrodes 116 successively, i.e. from the first end electrodes 116 laterally Stack gradually barrier film 114 and positive pole 113 and form the first auxiliary monomer 130b.As shown in Figure 12 or Figure 13, electrode assemblie 100 can To make positive pole be positioned at the outermost of the first end electrodes 116 by the first auxiliary monomer 130.
Generally, electrode possesses collector body and active material layer (active substance), and active material layer is coated on the two of collector body Face.Thus, on the basis of Figure 12, the active material layer of the downside being positioned at collector body in the active material layer of positive pole with barrier film is Medium and mutually react with the active material layer of the upside being positioned at collector body in the active material layer of negative pole.But, if Stack gradually them and form electrode assemblie 100 after forming basic monomer 110 in an identical manner, then electrode assemblie 100 The first end electrodes being positioned at top side or lower side can only be at the two of collector body in the way of identical with other first electrodes 111 Face possesses active material layer.But, if the first end electrodes has the structure being coated with active material layer on the two sides of collector body, Then the active material layer being positioned at outside in the active material layer of the first end electrodes cannot occur anti-with other active material layers Should.Therefore, the problem that active material layer is wasted is caused.
First auxiliary monomer 130 is used for solving this problem.That is, the first auxiliary monomer 130 and the independent shape of basic monomer 110 Become.Therefore, the first auxiliary monomer 130 can possess only one side at collector body and is formed with the positive pole of active material layer.That is, first Auxiliary monomer 130 can possess in the two sides of collector body only with basic monomer 110 one side in opposite directions (on the basis of Figure 12 with Lower section one side in opposite directions) it is coated with the positive pole of active material layer.Result is, if adding stacking first to the first end electrodes 116 Auxiliary monomer 130 and form electrode assemblie 100, then the positive pole that only one side is coated can be made to be positioned at the first end electrodes 116 side Outermost.Therefore, it is possible to solve the problem that active material layer is wasted.Further, owing to the most extremely (the most such as) releasing nickel ion Structure, therefore, make positive pole be positioned at outermost and be conducive to battery capacity.
Then, the second auxiliary monomer 140 is observed.Second auxiliary monomer 140 performs substantially single with the first auxiliary The effect that body 130 is identical.More specifically illustrate.Basic monomer 110 is to make first electrode the 111, first barrier film 112, second Electrode 113 and the second barrier film 114 from top to bottom or stack gradually from bottom to top and are formed.Therefore, if making this basic monomer 110 repeatedly stacking and form electrode assemblie 100, then the second barrier film 114,117 (following, referred to as " the second distal septum ") is positioned at The top side (with reference to Figure 10) of electrode assemblie 100 or lower side (with reference to Fig. 9).Second auxiliary monomer 140 add be laminated in this Second distal septum 117.
More specifically, as shown in figure 14, if the first electrode 111 is positive pole and the second electrode 113 is negative pole, then the second auxiliary Monomer 140a can be formed as positive pole 111.Further, as shown in figure 15, if the first electrode 111 for negative pole and the second electrode 113 is Positive pole, then can from the second distal septum 117 successively, i.e. from the second distal septum 117 laterally (on the basis of Figure 15 Side) stack gradually negative pole 111, barrier film 112 and positive pole 113 and form the second auxiliary monomer 140b.Second auxiliary monomer 140 also can Enough in the same manner as the first auxiliary monomer 130, possess in the two sides of collector body only with basic monomer 110 one side in opposite directions (with With upside one side in opposite directions on the basis of Figure 15) it is coated with the positive pole of active material layer.Result is, if to the second distal septum 117 Add stacking the second auxiliary monomer 140 and form electrode assemblie 100, then the positive pole that only one side is coated can be made to be positioned at the second end The outermost of end barrier film 117 side.
First electrode the 111, first barrier film the 112, second electrode is illustrated as reference, Figure 12 and Figure 13 and Figure 14 and Figure 15 113 and second barrier film 114 situation about stacking gradually from top to bottom.In contrast, it is also possible to illustrate in the same manner as foregoing The situation that one electrode the 111, first barrier film the 112, second electrode 113 and the second barrier film 114 stack gradually from bottom to top.Further, root According to needs, the first auxiliary monomer 130 and the second auxiliary monomer 140 can also also include barrier film in outermost.As an example, in place In the case of outermost positive pole needs with housing electric insulation, the first auxiliary monomer 130 and the second auxiliary monomer 140 can also Barrier film is also included in the outside of positive pole.According to identical reason, as shown in figure 14, be laminated with the second auxiliary monomer 140 The positive pole that contrary side (that is, the top side of the electrode assemblie 100 of Figure 14), side is exposed can also include barrier film.
On the other hand, as shown in Figure 16 to Figure 18, electrode assemblie 100 is preferably formed.It is possible, firstly, to as illustrated in fig. 16 Form electrode assemblie 100e.First electrode the 111, first barrier film the 112, second electrode 113 and can be stacked gradually from bottom to top Two barrier films 114 and form basic monomer 110b.Now, the first electrode 111 can be positive pole and the second electrode 113 can be negative Pole.And it is possible to from the first end electrodes 116 successively, i.e. stacking barrier film 114, negative pole from top to bottom on the basis of Figure 16 113, barrier film 112 and positive pole 111 and form the first auxiliary monomer 130c.Now, the positive pole 111 of the first auxiliary monomer 130c is permissible Only it is being formed with active material layer with basic monomer 110b one side in opposite directions.
And it is possible to from the second distal septum 117 successively, i.e. stacking positive pole 111 (from bottom to top on the basis of Figure 16 One positive pole), barrier film 112, negative pole 113, barrier film 114 and positive pole 118 (the second positive pole) and form the second auxiliary monomer 140c.This Time, be positioned in the positive pole of the second auxiliary monomer 140c outermost positive pole 118 (the second positive pole) can only with basic monomer 110b one side in opposite directions is formed with active material layer.As reference, if auxiliary monomer includes barrier film, the most beneficially row of monomer Row.
It is then possible to form electrode assemblie 100f as illustrated in fig. 17.Can make first electrode the 111, first barrier film 112, Second electrode 113 and the second barrier film 114 stack gradually from bottom to top and form basic monomer 110b.Now, the first electrode 111 can Think that positive pole and the second electrode 113 can be negative pole.And it is possible to stack gradually from the first end electrodes 116 barrier film 114, Negative pole 113 and barrier film 112 and form the first auxiliary monomer 130d.Now, even not possessing the second auxiliary monomer.As ginseng According to, negative pole can be reacted by the aluminium lamination of material external with bag by potential difference.It is therefore preferred that negative pole by barrier film with The external insulated with material of bag.
Finally, electrode assemblie 100g can be formed as illustrated in fig. 18.Can make first electrode the 111, first barrier film 112, Second electrode 113 and the second barrier film 114 stacking from top to bottom and form basic monomer 100c.Now, the first electrode 111 can be Negative pole and the second electrode 113 can be positive pole.And it is possible to stack gradually negative pole 111, barrier film from the second distal septum 117 112, positive pole 113, barrier film 114 and negative pole 119 and form the second auxiliary monomer 140d.Now, do not possesses the first auxiliary monomer yet Harmless.
On the other hand, about step S40 of manufacture method of the electrode assemblie of the preferred embodiment of the present invention, to will be the most single The situation of body 110 laminated multi-layer illustrates, but this merely to explanation convenience, be not meant to electrode assemblie 100 only by Basic monomer 110 is constituted.That is, it needs to it is clear that at the upper surface of one or more layers basic monomer 100, lower surface or up and down With basic monomer 100 together stacking arrange auxiliary monomer 130,140 and be also contained in step S40 on surface.
In detailed description of the invention as above, specific embodiment is illustrated.But without departing from this In the limit of bright category, it is possible to carry out various deformation.The technological thought of the present invention should not be limited to enforcement of the present invention Example, but should define not only by claimed scope but also with the technical scheme being equal to claimed scope Definition.
Description of reference numerals
100 (100a, 100b, 100c, 100d, 100e, 100f, 100g): electrode assemblie
110 (110a, 110b, 110c): basic monomer
111: the first electrode 112: the first barrier films
113: the second electrode 114: the second barrier films
116: the first end electrodes 117: the second distal septum
121: the first electrode material 122: the first diaphragm materials
123: the second electrode material 124: the second diaphragm materials
130 (130a, 130b, 130c, 130d): the first auxiliary monomer
140 (140a, 140b, 140c, 140d): the second auxiliary monomer
MA: adhesive tape attachment mechanism T: adhesive tape for fixing
G1: first control section G2: second control section

Claims (24)

1. a fixing means for electrode assemblie, comprises the steps:
Step S10, manufacture has makes multiple electrode and area be laminated in an alternating manner more than multiple barrier films of described electrode The electrode assemblie of structure;
Step S20, is configured at the edge side of described barrier film by adhesive tape for fixing, and described adhesive tape for fixing has relative to described electricity The central authorities that the direction of pole and the stacking of barrier film institute tilts are interval;And
Step S30, with the interval edge pressing described barrier film of the central authorities of described adhesive tape for fixing by described fixing glue Band is attached to described electrode assemblie.
The fixing means of electrode assemblie the most according to claim 1, it is characterised in that
In described step S30, the interval edge pressing described barrier film obliquely of central authorities of described adhesive tape for fixing.
The fixing means of electrode assemblie the most according to claim 1, it is characterised in that
Described step S30 comprises the steps:
Step S31, is attached to the side of described electrode assemblie by the described central authorities interval of described adhesive tape for fixing;And
The both ends of described adhesive tape for fixing are attached to the upper and lower surface of described electrode assemblie by step S32.
The fixing means of electrode assemblie the most according to claim 3, it is characterised in that
Described step S31 comprises the steps:
Described adhesive tape for fixing is made to move along the contact surface direction of described electrode and barrier film;And
Make described solid in the way of enabling the central interval of described adhesive tape for fixing to fold the edge of the plurality of barrier film Surely move above the side-lower or side of described electrode assemblie with adhesive tape.
The fixing means of electrode assemblie the most according to claim 1, it is characterised in that
Described step S30 performs by the adhesive tape attachment mechanism with first control section and second control section, the described first Hold portion and second control section and hold described adhesive tape for fixing in the way of the interval inclination of central authorities that can make described adhesive tape for fixing Both ends.
The fixing means of electrode assemblie the most according to claim 5, it is characterised in that
Described step S30 includes the upper and lower surface that the both ends of described adhesive tape for fixing are attached to described electrode assemblie Step S32,
Described step S32 by described adhesive tape attachment mechanism make by described first control section and second control section hold described solid The both ends of fixed adhesive tape are moved along the contact surface direction of described electrode and barrier film and are performed.
The fixing means of electrode assemblie the most according to claim 1, it is characterised in that
The edge, side of described barrier film and the opposite side edge of its opposition side are held by described step S20 and step S30 OK.
The fixing means of electrode assemblie the most according to claim 1, it is characterised in that
Described adhesive tape for fixing is formed by polymerizable material.
The fixing means of electrode assemblie the most according to claim 1, it is characterised in that
The described electrode assemblie manufactured in described step S10 includes at least one basic monomer,
Described basic monomer includes the stepped construction of the first electrode/the first barrier film/the second electrode/the second barrier film order.
The fixing means of electrode assemblie the most according to claim 9, it is characterised in that
Described basic monomer has the structure making described stepped construction repeated multiple times.
The fixing means of 11. electrode assemblies according to claim 9, it is characterised in that
Described basic monomer makes described electrode and described barrier film be mutually bonded and be formed.
The fixing means of 12. electrode assemblies according to claim 9, it is characterised in that
Described electrode and the bonding of described barrier film are based on executing stressed bonding to described electrode and described barrier film or being base In applying the bonding of pressure and heat to described electrode and described barrier film.
The fixing means of 13. electrode assemblies according to claim 11, it is characterised in that described basic monomer is by layer Described electrode and described barrier film is pressed to be formed.
The fixing means of 14. electrode assemblies according to claim 11, it is characterised in that described barrier film is coated with deposite device on surface There is the application substance of bonding force.
The fixing means of 15. electrode assemblies according to claim 14, it is characterised in that described application substance is inorganic matter Particle and the mixture of binder polymer.
The fixing means of 16. electrode assemblies according to claim 14, it is characterised in that described first barrier film is with described First electrode and described second electrode two sides in opposite directions applies described application substance, and described second barrier film is only electric with described second Pole one side in opposite directions applies described application substance.
The fixing means of 17. electrode assemblies according to claim 14, it is characterised in that described first barrier film is with described First electrode and described second electrode two sides in opposite directions applies described application substance, described second barrier film with described second electrode One side in opposite directions and its reverse side apply described application substance, and multiple basic monomers that described electrode assemblie is possessed are by described the The application substance of two barrier films and be mutually bonded.
The fixing means of 18. electrode assemblies according to claim 9, it is characterised in that
The described electrode assemblie manufactured in described step S10 also includes the first auxiliary monomer, described first auxiliary monomer stacking In being positioned at the first electrode that is first end electrodes of top side or lower side,
When described first electrode is positive pole and described second electrode is negative pole, stack gradually from described first end electrodes every Film, negative pole, barrier film and positive pole and form described first auxiliary monomer;When described first electrode is negative pole and described second electrode is During positive pole, from described first end electrodes, stack gradually barrier film and positive pole and form described first auxiliary monomer.
The fixing means of 19. electrode assemblies according to claim 18, it is characterised in that described first auxiliary monomer is just Pole includes:
Collector body;And
Positive active material, be only coated in the two sides of described collector body with described basic monomer one side in opposite directions.
The fixing means of 20. electrode assemblies according to claim 9, it is characterised in that
The described electrode assemblie manufactured in described step S10 also includes the first auxiliary monomer, described first auxiliary monomer stacking In being positioned at the first electrode that is first end electrodes of top side or lower side,
When described first electrode is positive pole and described second electrode is negative pole, stack gradually from described first end electrodes every Film, negative pole and barrier film and form described first auxiliary monomer.
The fixing means of 21. electrode assemblies according to claim 9, it is characterised in that
The described electrode assemblie manufactured in described step S10 also includes the second auxiliary monomer, described second auxiliary monomer stacking In being positioned at the second barrier film that is second distal septum of top side or lower side,
When described first electrode is positive pole and described second electrode is negative pole, described second auxiliary monomer is formed as positive pole;When Described first electrode is negative pole and time described second electrode is positive pole, stack gradually from described second distal septum negative pole, every Film and positive pole and form described second auxiliary monomer.
The fixing means of 22. electrode assemblies according to claim 21, it is characterised in that described second auxiliary monomer is just Pole includes:
Collector body;And
Positive active material, be only coated in the two sides of described collector body with described basic monomer one side in opposite directions.
The fixing means of 23. electrode assemblies according to claim 9, it is characterised in that
The described electrode assemblie manufactured in described step S10 also includes the second auxiliary monomer, described second auxiliary monomer stacking In being positioned at the second barrier film that is second distal septum of top side or lower side,
When described first electrode is positive pole and described second electrode is negative pole, from described second distal septum, stack gradually One positive pole, barrier film, negative pole, barrier film and the second positive pole and form described second auxiliary monomer, the second of described second auxiliary monomer Positive pole possesses collector body and positive active material, and described positive active material is that be only coated in the two sides of collector body with described base This monomer one side in opposite directions.
The fixing means of 24. electrode assemblies according to claim 9, it is characterised in that
The described electrode assemblie manufactured in described step S10 also includes the second auxiliary monomer, described second auxiliary monomer stacking In being positioned at the second barrier film that is second distal septum of top side or lower side,
When described first electrode is negative pole and described second electrode is positive pole, stack gradually negative from described second distal septum Pole, barrier film, positive pole, barrier film and negative pole and form described second auxiliary monomer.
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